The Door in the Woods: "The Door" (13:06)
Crypt TV Wiki; IMDb; YouTube

Three boys and a girl named Carrie are walking through the woods, looking for a door, which the people of their "colony" has stories about. It houses a "brute" which can be called out or sent back through the door, by reciting specific rhymes. When they find the door, not really believing the stories, they end up unleashing the brute, which kills a bunch of people in their small town. It's definitely a terrifying creature. And... I'm not sure what else to say, for now.

Followed by The Girl in the Woods.